Employee Equity Incentive Plans (Schedule of Stock-based Compensation Expense from Modifications) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Oct. 02, 2020	Oct. 02, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 8	$ 21
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	1	2
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	3	5
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	3	6
Restructuring and other costs
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 1	$ 8